The Google search is a usefulalternative to teh native forum search for several reasons.
Primarily, the forum software search has an imposed restriction on terms of 3 characters or less or terms that are over 20 characters.
This restriction is a performance related measure.

Example:
Searching for carafoam-carapils-maltodextrine will yoed the following error.

Sorry - no matches. Please try some different terms.
The following words are either very common, too long, or too short and were not included in your search : carafoam-carapils-maltodextrine